title: A new look at the infrared spectrum of the weakly bound CO-N2 complex.
abstract: A broad-band (2135-2165 cm(-1)) infrared spectrum of the CO-N2 van der Waals complex is obtained, using a tunable quantum cascade laser to probe a pulsed supersonic expansion from a slit jet source. Analysis of the spectrum results in the characterization of four new 'stacks' of rotational levels for CO-orthoN2 (all in the v(CO) = 1 upper state) and five new stacks for CO-paraN2 (three in the upper state and two in the vCO = 0 lower state). This considerably expands our knowledge of a rather fundamental weakly bound complex and should lead to improved determinations of the intermolecular forces governing interactions between the carbon monoxide and nitrogen molecules.
authors.affiliation: Department of Physics and Astronomy, University of Calgary , 2500 University Drive North West, Calgary, Alberta T2N 1N4, Canada.
authors.forename: Mojtaba
authors.initials: M
authors.lastname: Rezaei
authors.forename: K H
authors.initials: KH
authors.lastname: Michaelian
authors.forename: N
authors.initials: N
authors.lastname: Moazzen-Ahmadi
authors.forename: A R W
authors.initials: AR
authors.lastname: McKellar